Effect of fabrication method on electromagnetic properties of nanocomposites based on MWCNTs for RCS reduction

Nowadays, hiding from the sight of radars and detectors, i.e., stealth, is particularly important. The current research aims to investigate the effect of the fabrication method on the electromagnetic properties and radar absorption of nanocomposites to reduce the RCS in the X-band. Electromagnetic absorbers are one of the most important materials for stealth coatings. This research will consider presenting a method to increase the dispersion of nanoparticles in the polymer matrix to increase the ability to absorb waves. Radar-absorber materials (RAMs) absorb the energy of electromagnetic fields passing through them and convert it into heat. RAMs must be able to dissipate electrical and magnetic parts of the waves. In the current research, radar absorbent composite coatings were made by adding multi-walled carbon nanotubes (due to suitable mechanical, electrical and thermal properties) to epoxy resin (due to impedance matching with air) using three different fabrication methods, and their electromagnetic properties (Complex permittivity) were characterized. Also, the performance of radar absorption of the above composites was reported.

کلیدواژه ها:

Nanocomposite ، Reduction of radar cross-section ، Radar absorbing material ، X-band ، Multi-walled carbon nanotubes